Treaty

"...They claimed to be something different, so we made a treaty with them. If they promised to stay off the Quileute lands, then we wouldn't expose them for what they really were... to the pale-faces."

The truce was maintained as long as the Cullens wouldn't bite any humans (either hunting or to turn them) or come on to the Quileute's land (La Push), and the Quileute shape-shifters wouldn't attack them or reveal their presence to the humans. Carlisle Cullen and Ephraim Black were the signatories. Three exceptions were made: in Eclipse, when Carlisle and Edward enter the Quileute lands to tend to Jacob's wounds: and two other in Breaking Dawn, when Jacob permits Edward to turn Bella into a vampire, and when Sam Uley permits Alice and Jasper to cross over to access the ocean.

The Quileute territory is composed by the reservation and some other lands traditionally possessed by the Hoh and the Makah tribes. Forks, some cities around and the national road were neutral lands, in which both the Cullens and the Quileutes can roam.

Whilst the Cullens were hunting Victoria, she was clever enough to keep swapping the sides of the treaty lands.